Modeling of particle deposition in a vertical turbulent pipe flow at a reduced probability of particle sticking to the wall

Dmitry Eskin, John Ratulowski, Kamran Akbarzadeh

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Particle deposition on the wall in a dilute turbulent vertical pipe flow is modeled. The different mechanisms of particle transport to the wall are considered, i.e., Brownian motion, turbulent diffusion and turbophoresis. The Saffman lift force, the electrostatic force, the virtual mass effect and wall surface roughness are taken into account in the model developed. A boundary condition that accounts for the probability of particle sticking to the wall is suggested. An analytical solution for deposition of small Brownian particles is obtained. A particle relaxation time range, where the model developed is reliably applicable, is evaluated. Computational results obtained at different particle-wall sticking probabilities in the wide particle relaxation time range are presented and discussed.

Original languageEnglish
Pages (from-to)4561-4572
Number of pages12
JournalChemical Engineering Science
Volume66
Issue number20
DOIs
Publication statusPublished - 15 Oct 2011
Externally publishedYes

Keywords

  • Deposition
  • Diffusion
  • Mass transfer
  • Mathematical modeling
  • Particle Sticking Probability
  • Turbulence

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